Have you ever wondered how your brain separates internal stimuli, like your heartbeat, from external stimuli, like things that you see or hear? Researchers from the Center for Neuroprosthetics at EPFL ...

July 11 (UPI) --Without the brain's noise-cancellation capabilities, life would be too disorienting. The ability to filter out internal stimuli is essential to our ability to process the world around ...

How do our brains combine information from the external world (sensory stimulation) with information on our internal state such as hunger, fear or stress? Scientists demonstrate that the habenula, a ...

Our actions are triggered by various internal and external signals (stimuli). These signals may occur from verbal or physical interactions, ongoing or scheduled tasks, urgent requests, reminders, ...

Highly sensitive people (HSPs), people with sensory processing sensitivity, are characterized by heightened emotional sensitivity and increased reactivity to both external and internal stimuli.